TWM506209U - Ventilating fan - Google Patents

Description

Ventilation fan

This creation is about a ventilation fan.

Fig. 1A is a schematic view showing a mounting of a known ventilating fan. As shown in FIG. 1A, the ventilating fan 1 is mounted on the opening 3 of the ceiling 2, and includes: a frame 4, a snail shell covering the fan blade (not shown) and a motor (not shown) (not shown), and a circuit mounted thereon. A circuit board box (not shown) of a board (not shown) and a junction box 5 for wire connection and a mask 6.

In order to facilitate maintenance, the junction box 5 is placed on the side of the suction opening of the snail shell, that is, near the side of the mask 6, so that the maintenance personnel can repair the junction box 5 by simply opening the mask 6. However, just because the junction box 5 is disposed on the suction side of the snail shell, that is, near the mask 6 side, and the power cord 7 is disposed inside the ceiling 2, it is easily conceivable by those skilled in the art to open the hole 9 in the frame 4 so that the power cord 7 It can be connected to the junction box 5 through the opening 9.

In order to prevent the installation of the ventilating fan 10 in the ceiling 2 from being unstable or having a risk of falling, the size of the bottom opening of the conventional frame 4 is almost the same as the size of the opening 3 of the ceiling 2, and the gap 8 between the frame 4 and the ceiling 2 is insufficient. By passing through the power supply line 7, when the opening 9 is provided on the side surface 41 of the frame 4 near the bottom surface of the frame 4, when the power supply line 7 is connected to the junction box 5, the power supply line 7 is opened from the side surface 41 of the frame 4. The hole 9 enters. When the ventilating fan 1 is pushed into the ceiling 2 opening after the wiring is completed, since the power cord 7 protrudes from the side surface 41 of the frame 4, the size of the bottom opening of the frame 4 is almost the same as the size of the opening 3 of the ceiling 2. Therefore, the power cord 7 interferes with the ceiling 2, so that the ventilating fan 1 cannot be pushed into the ceiling 2, and eventually the ventilating fan 1 cannot be attached to the ceiling 2.

Fig. 1B is a schematic view showing another installation of a known ventilating fan. As shown in FIG. 1B, when the opening 9 is provided on the side surface 41 of the frame 4 near the top surface 42 of the frame 4 or the top surface 42 of the frame 4, at this time, the opening 9 is relatively far from the junction box 5 when the power supply line 7 is inserted. After opening the hole 9, as long as it hits the inside of the ventilating fan 1, the track is changed, and the junction box 5 cannot be smoothly reached, which increases the installation difficulty and the installation man-hour.

The purpose of this creation is to provide a ventilation fan that makes it easier and simpler to install the power cord on the junction box.

In order to achieve the above object, the present invention provides a ventilating fan installed in an opening of a ceiling, the ventilating fan comprising: a frame provided with a power cord opening, a snail shell with a fan blade and a motor; and a circuit board box equipped with a circuit board And a junction box for wire connection, the circuit board box and the junction box and the snail shell are both disposed inside the frame, and outside the snail shell, a first guide board is disposed in the frame, the first A guide wire forms a power line guide groove with the snail shell or with the circuit board case.

The advantage of this creation is that it is convenient and simple to realize the wiring of the power cord to the junction box.

Fig. 2 is a schematic view showing a side of the ventilating fan of the first embodiment of the present invention imaginarily removing the frame.

As shown in FIG. 2, a ventilating fan 10 is mounted on an opening (not shown) of a ceiling (not shown). The ventilating fan 10 includes a frame 20 provided with a power cord opening 21 and a fan blade therein. a snail shell 30 (not shown) and a motor (not shown), a circuit board case 40 equipped with a circuit board (not shown), a junction box 70 for wire connection, and a mask 60, the circuit board case 40 And the junction box 70 and the snail shell 30 are both disposed inside the frame 20, and a first guiding plate 31 is disposed on the outer wall of the snail shell 30, and the first guiding plate 31 and the snail shell 30 are The power line guide 50 is formed between the places (ie, where they are in contact). The above frame 20, blades, motors, snail shells 30 covering the blades and motors are all known in the art and will not be described in detail herein.

When the power cord opening 21 is disposed on the top surface 23 of the frame 20, since the first guide sheet 31 is epitaxially disposed on the outer wall of the snail shell 30, the power cord 7 enters the inside of the ventilating fan 10 from the power cord opening 21, and the power cord 7 will follow the power line guide 50 to the side of the suction opening (not shown) of the snail shell 30. At this time, the operator can pull the power cord 7 from the bottom surface of the frame 20 to the wiring portion 71 of the junction box 70. Power line 7 wiring operation.

In addition, due to the guiding of the first guiding plate 31, the power supply line 7 can only move within the gap between the first guiding plate 31 and the snail shell 30 within a prescribed range, so the power supply line 7 does not collide with the ventilating fan. The components in 10 (for example, the circuit board case 40, etc.) are moved to the screw holes (not shown) for mounting the ventilating fan 10, thereby avoiding the insertion of the screws for the screws (not shown) for mounting the ventilating fan 10 to the ceiling. The risk of damage to the power cord 7 by the holes.

Further, when the first guiding plate 31 is insufficient to guide the power supply line 7 to the bottom surface of the frame 20, the second guiding plate 43 may be extended to the outer wall of the circuit board case 40 such that the power supply line 7 follows the power line guiding groove. When the second guide plate 43 is touched, the direction is changed toward the air suction port side of the snail shell 30, and the suction port side of the snail shell 30 is smoothly reached.

3A is a schematic view of a ventilating fan of a second embodiment of the present invention; and FIG. 3B is a schematic view of a ventilating fan of the second embodiment of the present invention imaginarily removing one side and a top surface of the frame. Figure 4 is a schematic view showing the installation of the second embodiment of the present invention.

As shown in FIGS. 3A, 3B and 4, a ventilating fan 10 is mounted on an opening 3 of a ceiling 2, the ventilating fan 10 comprising: a frame 20 provided with a power cord opening 21', and a fan blade 38 therein And a snail shell 30 of a motor (not shown), a circuit board case 40 equipped with a circuit board (not shown), a junction box 70 for wire connection, and a mask 60, the circuit board case 40 and the junction box 70 and the snail shell 30 are both disposed inside the frame 20, and a first guiding plate 31' is outwardly disposed on the outer wall of the snail shell 30, and the first guiding plate 31' is formed between the first guiding plate 31' and the circuit board case 40. Power line guide 50'.

In this embodiment, when the power cord opening 21' cannot be disposed on the top surface 23 of the frame 20 due to the height limitation, the power cord opening 21' is disposed on the side surface 22 of the frame 20, but the power cord is opened. The vertical distance from 21' to the edge 24 between its opposite side 26 and the top surface 23 is less than the length of the opening 3 of the ceiling 2.

A guide inclined surface 421 which is inclined from the power supply line guide groove 50' toward the power supply line opening 21' is provided between the outer wall of the snail shell 30 and the first guide sheet 31', that is, the power line guide groove 50'.

When the power cord opening 21' is disposed on the side 22 of the frame 20, an opening 21' from the power cord guide 50' to the power cord is disposed between the outer wall of the snail shell 30 and the first guide panel 31'. The inclined guiding inclined surface 421 can make the power supply line 7 enter the power supply line opening 21', and firstly contact the guiding inclined surface 421 inclined from the power line guiding groove 50' to the power line opening 21', and then, with the guidance The guiding of the inclined surface 421 enters the power line guide 50' formed between the first guiding plate 31' and the snail shell 30, and then reaches the air inlet 39 of the snail shell 30 as the power line guide 50' is guided. On the side, at this time, the operator can pull the power supply line 7 from the bottom surface of the frame 20 to the wiring portion 71 of the junction box 70 to perform the wiring operation of the power supply line 7.

Further, when the first guiding plate 31' is insufficient to guide the power supply line 7 to the bottom surface of the frame 20, the second guiding plate 43' may be epitaxially disposed on the circuit board case 40 such that the power supply line 7 follows the first guiding board. 31' or the power line guide groove 50' advances, and then touches the second guide plate 43' and then changes direction toward the side of the air inlet 39 of the snail shell 30, and smoothly reaches the side of the air inlet 39 of the snail shell 30.

As shown in FIG. 4, when the power cord opening 21' cannot be disposed on the top surface 23 of the frame 20 due to the height limitation, the power cord opening 21' is disposed on the side surface 22 of the frame 20, and the ventilating fan 10 will be performed. When mounting to the ceiling 2, the power cord 7 is first inserted into the inside of the ventilating fan 10 through the power cord opening 21', and then the ventilating fan 10 is placed obliquely on the ceiling 2 opening 3, and the power cord 7 does not interfere with the ceiling due to the tilting relationship. Smoothly enter the ceiling 2.

Then, when the power cord 7 enters the ceiling, the ventilating fan 10 is squared and the ventilating fan 10 is pushed vertically into the ceiling, due to the vertical distance of the power cord opening 21' to the edge 24 between the opposite side 26 and the top surface 23. It is smaller than the length of the opening 3 of the ceiling 2, so that there is sufficient space to align the ventilating fan 10, and further, since the power cord 7 that interferes with the ceiling 2 has entered the ceiling 2, the ventilating fan 10 can be smoothly pushed into the ceiling. Inside.

The present invention provides a third embodiment. The first guiding plate is formed by the outer wall of the circuit board box, and the second guiding plate is formed by the outer wall of the snail shell. The rest of the structure is the same as the first embodiment.

The present invention also provides a fourth embodiment, the first guiding plate is outwardly extended from the outer wall of the circuit board case as in the third embodiment, and the second guiding plate is outwardly formed from the outer wall of the snail shell as in the third embodiment. The rest of the structure is the same as the second embodiment.

It should be noted that the present invention does not limit whether the first guiding plate is extended from the outer wall of the snail shell or is extended from the outer wall of the circuit board box, or even the outer wall of the heating device and the air path switching structure. The upper guide plate is extended as long as the first guide plate is disposed outside the snail shell and within the frame.

Further, even if the first guiding plate is formed by the outer wall of the snail shell, the second guiding plate may be formed on the outer wall of the snail shell.

Similarly, even if the first guide plate is extended from the outer wall of the circuit board case, the second guide plate may be outwardly disposed on the outer wall of the circuit board case.

1, 10‧‧‧ ventilation fans
2‧‧‧ ceiling
3‧‧‧ openings
4, 20‧‧‧ framework
5‧‧‧ junction box
6, 60‧‧‧ mask
7‧‧‧Power cord
8‧‧‧ gap
9‧‧‧Opening
21, 21'‧‧‧Power cord opening
22, 26, 41‧‧‧ side
23, 42‧‧‧ top
30‧‧‧Snail shell
31, 31'‧‧‧ first guide board
40‧‧‧Circuit board box
43‧‧‧Second guide board
50‧‧‧Power cord guide
70‧‧‧ junction box
71‧‧‧Wiring

Fig. 1A is a schematic view showing a mounting of a known ventilating fan. Fig. 1B is a schematic view showing another installation of a known ventilating fan. Fig. 2 is a schematic view showing a side of the ventilating fan of the first embodiment of the present invention imaginarily removing the frame. Fig. 3A is a schematic view showing a ventilating fan of a second embodiment of the present invention. Fig. 3B is a schematic view showing the ventilating fan of the second embodiment of the present invention imagining the removal of one side and the top surface of the frame. Figure 4 is a schematic view showing the installation of the second embodiment of the present invention.

10‧‧‧Ventilator

20‧‧‧Frame

30‧‧‧Snail shell

31’‧‧‧First Guide Board

38‧‧‧ fan leaves

39‧‧‧ suction port

40‧‧‧Circuit board box

421‧‧‧Guided inclined surface

43’‧‧‧Second Guide Board

50'‧‧‧Power cord guide

70‧‧‧ junction box

71‧‧‧Wiring

Claims (10)

A ventilating fan installed in an opening of a ceiling, the ventilating fan comprising a frame with a power cord opening, a snail shell with a fan blade and a motor, a circuit board box with a circuit board, and a junction box for wire connection. The circuit board box and the junction box and the snail shell are both disposed inside the frame, wherein: outside the snail shell, a first guiding board is disposed in the frame, and the first guiding board and the A snail shell or a power line guide is formed between the snail shell and the circuit board box. The ventilating fan of claim 1, wherein the power cord opening is disposed on a top surface of the frame. The ventilating fan of claim 1, wherein the power cord opening is disposed on a side of the frame; the power cord is opened to an edge between an opposite frame side and a top surface of the frame. The vertical distance is less than the length of the opening of the ceiling. The ventilating fan of claim 1, wherein the first guiding plate is outwardly extended from an outer wall of the snail shell. The ventilating fan according to claim 1, wherein the power line guide groove is provided with a guiding inclined surface that is inclined from the power line guide groove toward the power line opening. The ventilating fan of claim 1, wherein the outer wall of the snail shell or the outer wall of the circuit board box is provided with a second guiding plate, so that the power line advances along the power line guide, and then After touching the second guide plate, the direction is changed toward the air suction port side of the snail shell, and smoothly reaches the air suction port side of the snail shell. The ventilating fan of claim 1, wherein the first guiding plate is extended from an outer wall of the circuit board box. The ventilating fan of claim 7, wherein the power line guide groove is provided with a guiding inclined surface inclined from the power line guide groove to the power line opening. The ventilating fan of claim 8, wherein the outer wall of the snail shell or the outer wall of the circuit board box is provided with a second guiding plate, so that the power line advances along the power line guide, and then After touching the second guide plate, the direction is changed toward the air suction port side of the snail shell, and smoothly reaches the air suction port side of the snail shell. The ventilating fan according to claim 1, wherein the ventilating fan is further provided with a heating device and a wind path switching structure, and the first guiding plate is extended by the heating device or the outer wall of the air passage switching structure. Made.